421223133200 has 60 divisors (see below), whose sum is σ = 1015181276100. Its totient is φ = 167957690880.

The previous prime is 421223133193. The next prime is 421223133209. The reversal of 421223133200 is 2331322124.

It can be written as a sum of positive squares in 6 ways, for example, as 106766869504 + 314456263696 = 326752^2 + 560764^2 .

It is not an unprimeable number, because it can be changed into a prime (421223133209) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1534175 + ... + 1787774.

It is an arithmetic number, because the mean of its divisors is an integer number (16919687935).

Almost surely, 2^421223133200 is an apocalyptic number.

421223133200 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

421223133200 is an abundant number, since it is smaller than the sum of its proper divisors (593958142900).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

421223133200 is a wasteful number, since it uses less digits than its factorization.

421223133200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3322284 (or 3322273 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 421223133200 its reverse (2331322124), we get a palindrome (423554455324).

The spelling of 421223133200 in words is "four hundred twenty-one billion, two hundred twenty-three million, one hundred thirty-three thousand, two hundred".